NS 4 - intro to the CNS

Question 1

which fissure divides both the frontal and parietal lobe?

Answer 1

lateral fissure

Question 2

what is the largest center in the brain that controls sensory, motor activities and intelligence?

Answer 2

cerebellum

Question 3

what type of nerve fibers makeup the outer layer of the cerebral cortex?

Answer 3

gray matter

Question 4

where do conscious thoughts and actions take place?

Answer 4

cerebral cortex, which is the outer layer of the brain

Question 5

the cerebellum has two hemispheres…

Answer 5

outer cortex of gray matter and inner cortex of white matter

Question 6

where is the diencephalon located?

Answer 6

between the cerebrum and midbrain

Question 7

what does the diencephalon consist off?

Answer 7

thalamus and hypothalamus

Question 8

what is the brainstem made up off?

Answer 8

midbrain, pons and medulla oblongata

Question 9

which cranial nerves is the midbrain a reflex center for?

Answer 9

cranial nerves III and IV

Question 10

which cranial nerves is the pons a reflex center for?

Answer 10

V to VII

Question 11

the medulla oblongata joins the spinal cord at the foramen magnum, what does it influence ?

Answer 11

influences heart, breathing and circulation

Question 12

what are ventricles?

Answer 12

fluid filled cavities in the brain and there are 4 of them

Question 13

what do the ventricles produce?

Answer 13

CSF- which is a shock absorbing liquid that is constantly moving

Question 14

the CSF fluid cushions the brain, distributes nutrients and collects waste

Answer 14

true

Question 15

the blood supply from the brain comes from which 4 major arteries?

Answer 15

2 vertebral ad 2 carotid

Question 16

which region of the brain do the vertebral arteries supply?

Answer 16

back of brain

Question 17

which region of the brain do the carotid arteries supply?

Answer 17

front and middle

Question 18

what does the back area of the frontal lobe specialise in?

Answer 18

motor functions, including language and voluntary movements

Question 19

the front of the frontal lobes are involved in what?

Answer 19

learning, planning and personality

Question 20

what does the temporal lobe control?

Answer 20

hearing centers, language comprehension, storing and recalling memories

Question 21

what does the temporal and parietal lobe cover up?

Answer 21

insula - 5th lobe

Question 22

list the sinuses of the falx cerebri (8)

Answer 22

• inferior sagittal
• superior sagittal
• straight sinus
• confluence of sinus
• superior petrosal sinus
• cavernous sinus
• transverse
• sigmoid

Question 23

what does the choroid plexus in ventricles produce?

Answer 23

CSF